EP1035313A2 - Méthode et dispositif pour augmanter la temperature des gaz d'echappement - Google Patents

Méthode et dispositif pour augmanter la temperature des gaz d'echappement Download PDF

Info

Publication number: EP1035313A2
Authority: EP; European Patent Office
Prior art keywords: exhaust gas; gas temperature; temperature; combustion engine; internal combustion
Prior art date: 1999-03-05
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.): Granted

Application number

EP00102025A

Other languages

German (de)

English (en)

Other versions

EP1035313A3 (fr

EP1035313B1 (fr

Inventor

Stephan Dr. Rubbert

Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)

Bayerische Motoren Werke AG

Original Assignee

Bayerische Motoren Werke AG

Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)

1999-03-05

Filing date

2000-02-02

Publication date

2000-09-13

2000-02-02 Application filed by Bayerische Motoren Werke AG filed Critical Bayerische Motoren Werke AG

2000-09-13 Publication of EP1035313A2 publication Critical patent/EP1035313A2/fr

2002-05-02 Publication of EP1035313A3 publication Critical patent/EP1035313A3/fr

2003-10-29 Application granted granted Critical

2003-10-29 Publication of EP1035313B1 publication Critical patent/EP1035313B1/fr

2020-02-02 Anticipated expiration legal-status Critical

Status Expired - Lifetime legal-status Critical Current

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Classifications

- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL-COMBUSTION ENGINES
- F01N9/00—Electrical control of exhaust gas treating apparatus
- F01N9/005—Electrical control of exhaust gas treating apparatus using models instead of sensors to determine operating characteristics of exhaust systems, e.g. calculating catalyst temperature instead of measuring it directly
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02D—CONTROLLING COMBUSTION ENGINES
- F02D41/00—Electrical control of supply of combustible mixture or its constituents
- F02D41/0002—Controlling intake air
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02D—CONTROLLING COMBUSTION ENGINES
- F02D41/00—Electrical control of supply of combustible mixture or its constituents
- F02D41/02—Circuit arrangements for generating control signals
- F02D41/021—Introducing corrections for particular conditions exterior to the engine
- F02D41/0235—Introducing corrections for particular conditions exterior to the engine in relation with the state of the exhaust gas treating apparatus
- F02D41/024—Introducing corrections for particular conditions exterior to the engine in relation with the state of the exhaust gas treating apparatus to increase temperature of the exhaust gas treating apparatus
- F02D41/0245—Introducing corrections for particular conditions exterior to the engine in relation with the state of the exhaust gas treating apparatus to increase temperature of the exhaust gas treating apparatus by increasing temperature of the exhaust gas leaving the engine
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02D—CONTROLLING COMBUSTION ENGINES
- F02D41/00—Electrical control of supply of combustible mixture or its constituents
- F02D41/02—Circuit arrangements for generating control signals
- F02D41/14—Introducing closed-loop corrections
- F02D41/1438—Introducing closed-loop corrections using means for determining characteristics of the combustion gases; Sensors therefor
- F02D41/1444—Introducing closed-loop corrections using means for determining characteristics of the combustion gases; Sensors therefor characterised by the characteristics of the combustion gases
- F02D41/1446—Introducing closed-loop corrections using means for determining characteristics of the combustion gases; Sensors therefor characterised by the characteristics of the combustion gases the characteristics being exhaust temperatures
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02D—CONTROLLING COMBUSTION ENGINES
- F02D41/00—Electrical control of supply of combustible mixture or its constituents
- F02D41/30—Controlling fuel injection
- F02D41/3011—Controlling fuel injection according to or using specific or several modes of combustion
- F02D41/3017—Controlling fuel injection according to or using specific or several modes of combustion characterised by the mode(s) being used
- F02D41/3023—Controlling fuel injection according to or using specific or several modes of combustion characterised by the mode(s) being used a mode being the stratified charge spark-ignited mode
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02D—CONTROLLING COMBUSTION ENGINES
- F02D41/00—Electrical control of supply of combustible mixture or its constituents
- F02D41/30—Controlling fuel injection
- F02D41/3011—Controlling fuel injection according to or using specific or several modes of combustion
- F02D41/3076—Controlling fuel injection according to or using specific or several modes of combustion with special conditions for selecting a mode of combustion, e.g. for starting, for diagnosing
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
- F02B75/00—Other engines
- F02B75/12—Other methods of operation
- F02B2075/125—Direct injection in the combustion chamber for spark ignition engines, i.e. not in pre-combustion chamber
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/10—Internal combustion engine [ICE] based vehicles
- Y02T10/12—Improving ICE efficiencies
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/10—Internal combustion engine [ICE] based vehicles
- Y02T10/40—Engine management systems

Definitions

the invention relates to a method and a device for increasing the exhaust gas temperature 8. According to the preamble of claim 1 and 8 respectively.
JP 10054287 A the ignition point to adjust.
An increase in exhaust gas temperature in an internal combustion engine with stratified operation is by adjusting the ignition timing towards late ignition, however, only to a limited extent possible because there is a larger distance between the injection end and the ignition leads to misfires and unstable combustion.
the object of the invention is a method and an apparatus of the beginning specified type with which the exhaust gas temperature can be increased as required, while at the same time in short-term idling or in low part-load operation the good efficiency of an unthrottled one Shift operation should be used.
the exhaust gas temperature is raised by throttling only if the exhaust gas temperature falls below a threshold value is.
the throttling can preferably be time and / or temperature controlled, so that the strength of the throttling to the respective operating conditions is customizable.
the catalyst device can be pre-catalysts which are followed, for example, by temperature probes as a device for determining the exhaust gas temperature.
a storage catalytic converter e.g. NO x storage catalytic converter
the check can be carried out by evaluating the lambda jump.
ODB sensors of the engine control can also be used (for example a lambda sensor, a NO x sensor or an exhaust gas temperature sensor).
the internal combustion engine checks whether the throttling to raise the temperature is sufficient. If this is not the case, then in a second stage switched to homogeneous operation of the internal combustion engine.
the pre-ignition angle for raising the temperature in the Exhaust system can be reduced.
the exhaust temperature threshold as a function of vehicle operating or vehicle environment conditions. In particular is an adjustment depending on the ambient temperature and the vehicle speed possible. With this measure, for example when the vehicle is rolling (e.g. when driving downhill), it cools down quickly of the storage catalytic converter through early measures to increase the temperature prevented. The temperature gradient could also be evaluated become. Even with a sharp drop in temperature in the catalyst the motor can be switched directly to homogeneous operation.
the method according to the invention results and the device for performing such a simple method and inexpensive possibility of a temperature increase according to need, with which both prevents the catalyst from cooling as well the good efficiency of one operating in unthrottled shift operation Engine is maintained.
the drawing shows an internal combustion engine 10 in a schematic manner with an intake duct 11 and two exhaust pipes 16, 18, which in one common exhaust duct 29 open.
a pre-catalyst 12 and 14 are arranged in the two exhaust lines 16 and 18, a pre-catalyst 12 and 14 are arranged. Behind every pre-catalyst 12, 14, an exhaust gas temperature sensor 20, 22 is provided, which outputs its signal to a control unit 30.
a NO x storage catalytic converter is arranged in the exhaust gas duct 29, which in turn is followed by a monitor probe 28.
the monitor probe can check the storage catalytic converter during its regeneration phase and also sends its signal to the control unit 30. The check is carried out by evaluating the lambda jump of the monitor probe 28.
a throttle device 24 In the inlet channel 11 is a throttle device 24 with an adjustable Throttle valve arranged.
the throttle device 24 is u. a. of the Control device 30 acted upon.
the throttle device 24 can also be acted upon by a further control device, but this is not shown here.
the control device 30 is also provided with an injection control 32 connected, which also from other control units information (Arrow 33) receives.
Arrow 33 control units information
Injections become information on injectors 34 through 40 emitted, the corresponding fuel from a (not shown) fuel line bring into the combustion chambers.
connection 42 between the control device 30 and the Motor 10 provided, about which further information, for example with regard to the valve spread to be selected or the ignition timing adjustment, be given directly to the engine.
the internal combustion engine is used as a direct injection engine driven in stratified operation.
the unthrottled Shift operation leads to good efficiency and thus low Fuel consumption.
vehicle can determine the exhaust gas temperature threshold operating and environmental parameters are taken into account. For example the exhaust gas temperature threshold value depending on the ambient temperature and the driving speed can be selected. So that leaves for example at low ambient temperatures and rolling Prevent the vehicle from cooling down quickly. As a preventive Measure to prevent cooling can be premature Increasing the temperature threshold can be selected. In addition the temperature gradient can be evaluated.
the signals from the exhaust gas temperature sensors 20 from the control unit 30 and 22 monitors and it is determined whether the throttling in the stratified Operation to a sufficient increase in the exhaust gas temperature leads. If this is not the case, a switchover to a homogeneous takes place Operation of the internal combustion engine with stoichiometric combustion. Accordingly, the injection control 32 as well as the other engine elements operated as intake, exhaust valve control.
the control device 30 outputs to the engine 10 or its engine controls a corresponding signal or signals from.
the proposed regulation or the device according to the invention should raise the exhaust gas temperature level by throttling when the exhaust gas temperature threshold falls below the temperature probes downstream of the pre-catalysts. This means that you can continue to use the unthrottled shift operation during a short idle or in the low partial load range, which leads to fuel savings. Throttling takes place only in the case of a longer idling phase or a longer phase of low part-load operation, that is to say when the catalyst temperature falls below 200 ° C., for example. However, this is either time-controlled or is only carried out until the exhaust gas temperature threshold is exceeded again. An additional step is to switch to homogeneous operation with stoichiometric combustion and lambda control if the throttling is not sufficient.
the two pre-catalysts work as conventional three-way catalysts that convert all pollutant components.
the effectiveness of the NO x storage catalytic converter used in this case is then not necessary in this operating state. Monitoring of the storage catalytic converter in this operating state could thus be dispensed with.
the pre-ignition angle can finally be reduced if necessary in a third step.

Landscapes

Engineering & Computer Science (AREA)
Chemical & Material Sciences (AREA)
Combustion & Propulsion (AREA)
Mechanical Engineering (AREA)
General Engineering & Computer Science (AREA)
Analytical Chemistry (AREA)
Chemical Kinetics & Catalysis (AREA)
Exhaust Gas After Treatment (AREA)
Electrical Control Of Air Or Fuel Supplied To Internal-Combustion Engine (AREA)
Electrical Control Of Ignition Timing (AREA)
Control Of Throttle Valves Provided In The Intake System Or In The Exhaust System (AREA)
Combined Controls Of Internal Combustion Engines (AREA)

EP00102025A 1999-03-05 2000-02-02 Méthode et dispositif pour augmanter la temperature des gaz d'echappement Expired - Lifetime EP1035313B1 (fr)

Applications Claiming Priority (2)

Application Number	Priority Date	Filing Date	Title
DE19909796A DE19909796A1 (de)	1999-03-05	1999-03-05	Verfahren und Vorrichtung zur Abgastemperaturerhöhung
DE19909796		1999-03-05

Publications (3)

Publication Number	Publication Date
EP1035313A2 true EP1035313A2 (fr)	2000-09-13
EP1035313A3 EP1035313A3 (fr)	2002-05-02
EP1035313B1 EP1035313B1 (fr)	2003-10-29

Family

ID=7899877

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
EP00102025A Expired - Lifetime EP1035313B1 (fr)	1999-03-05	2000-02-02	Méthode et dispositif pour augmanter la temperature des gaz d'echappement

Country Status (5)

Country	Link
US (1)	US6311666B1 (fr)
EP (1)	EP1035313B1 (fr)
JP (1)	JP2000257450A (fr)
DE (2)	DE19909796A1 (fr)
ES (1)	ES2208160T3 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
EP1296050A1 (fr) *	2001-09-25	2003-03-26	Ford Global Technologies, Inc., A subsidiary of Ford Motor Company	Système et procédé de régénération d'un dispositif de traitement de gaz d'échappement
EP1298301A1 (fr) *	2001-09-26	2003-04-02	Ford Global Technologies, Inc., A subsidiary of Ford Motor Company	Méthode pour contrôler le démarrage d'un moteur à combustion interne
EP1375878A3 (fr) *	2002-06-27	2004-10-13	DaimlerChrysler AG	Procédé de commande d'un moteur à combustion intèrne à injection directe

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
DE10154664A1 (de) *	2001-11-07	2003-05-22	Bosch Gmbh Robert	Verfahren, Computerprogramm, Steuer und/oder Regelgerät zum Betreiben einer Brennkraftmaschine sowie Brennkraftmaschine
DE102014204509A1 (de) *	2014-03-12	2015-09-17	Bayerische Motoren Werke Aktiengesellschaft	Wassereinspritzanlage für einen Verbrennungsmotor
MX2020006245A (es) *	2017-12-15	2020-09-03	Nissan Motor	Metodo de control de calentamiento de catalizador para vehiculo hibrido y aparato de control de calentamiento de catalizador para vehiculo hibrido.
MX2020006127A (es) *	2017-12-15	2020-08-24	Nissan Motor	Metodo de control de calentamiento del catalizador para vehiculo hibrido y dispositivo de control de calentamiento del catalizador para vehiculo hibrido.
CN112983661B (zh) *	2021-01-29	2022-12-16	广西玉柴机器股份有限公司	一种发动机高原高寒的热管理控制装置及方法
CN113047970B (zh) *	2021-03-04	2022-11-18	广西玉柴机器股份有限公司	一种高寒高原快速提高排气温度的方法及装置

Citations (1)

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Publication number	Priority date	Publication date	Assignee	Title
JPH1054287A (ja)	1996-08-13	1998-02-24	Toyota Motor Corp	筒内直接噴射式内燃機関の燃料噴射制御装置

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JPS61112715A (ja) *	1984-11-08	1986-05-30	Toyota Motor Corp	デイ−ゼル機関の排気浄化装置
JP2663720B2 (ja) *	1990-12-26	1997-10-15	トヨタ自動車株式会社	ディーゼルエンジンの排気浄化装置
GB2301459B (en) *	1994-09-29	1997-07-02	Fuji Heavy Ind Ltd	Method for controlling a direct fuel injection engine
DE19536098C2 (de) *	1994-09-29	1997-09-18	Fuji Heavy Ind Ltd	System und Verfahren zur Steuerung der Katalysatoraktivierung in einem Motor mit Kraftstoffdirekteinspritzung
JP3052856B2 (ja) *	1996-10-24	2000-06-19	三菱自動車工業株式会社	排気昇温装置
JP3257423B2 (ja) *	1996-12-12	2002-02-18	三菱自動車工業株式会社	排気昇温装置
JPH10299463A (ja) *	1997-04-30	1998-11-10	Toyota Motor Corp	内燃機関の排気浄化装置
DE19731623B4 (de) *	1997-07-23	2006-11-23	Volkswagen Ag	Verfahren und Vorrichtung zur De-Sulfatierung von NOx-Speichern bei Dieselmotoren
JP3536606B2 (ja) *	1997-08-21	2004-06-14	日産自動車株式会社	直噴火花点火式内燃機関の燃料噴射制御装置
JP2000227037A (ja) *	1999-02-05	2000-08-15	Mitsubishi Electric Corp	筒内噴射式内燃機関の制御装置
US6189316B1 (en) *	1999-05-19	2001-02-20	Ford Global Technologies, Inc.	Emission device temperature control system

1999
- 1999-03-05 DE DE19909796A patent/DE19909796A1/de not_active Withdrawn
2000
- 2000-02-02 EP EP00102025A patent/EP1035313B1/fr not_active Expired - Lifetime
- 2000-02-02 ES ES00102025T patent/ES2208160T3/es not_active Expired - Lifetime
- 2000-02-02 DE DE50004214T patent/DE50004214D1/de not_active Expired - Lifetime
- 2000-02-04 JP JP2000028040A patent/JP2000257450A/ja active Pending
- 2000-03-06 US US09/519,901 patent/US6311666B1/en not_active Expired - Lifetime

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
JPH1054287A (ja)	1996-08-13	1998-02-24	Toyota Motor Corp	筒内直接噴射式内燃機関の燃料噴射制御装置

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
EP1296050A1 (fr) *	2001-09-25	2003-03-26	Ford Global Technologies, Inc., A subsidiary of Ford Motor Company	Système et procédé de régénération d'un dispositif de traitement de gaz d'échappement
US6644020B2 (en)	2001-09-25	2003-11-11	Ford Global Technologies, Llc	Device and method for regenerating an exhaust gas aftertreatment device
EP1298301A1 (fr) *	2001-09-26	2003-04-02	Ford Global Technologies, Inc., A subsidiary of Ford Motor Company	Méthode pour contrôler le démarrage d'un moteur à combustion interne
US6829888B2 (en)	2001-09-26	2004-12-14	Ford Global Technologies, Llc	Method for controlling the starting of an internal combustion engine
EP1375878A3 (fr) *	2002-06-27	2004-10-13	DaimlerChrysler AG	Procédé de commande d'un moteur à combustion intèrne à injection directe

Also Published As

Publication number	Publication date
EP1035313A3 (fr)	2002-05-02
DE19909796A1 (de)	2000-09-07
ES2208160T3 (es)	2004-06-16
EP1035313B1 (fr)	2003-10-29
US6311666B1 (en)	2001-11-06
DE50004214D1 (de)	2003-12-04
JP2000257450A (ja)	2000-09-19

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Publication	Publication Date	Title
EP1336037B1 (fr)	2006-03-01	Procede et dispositif pour reguler un systeme de traitement subsequent de gaz d'echappement
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